/* ***** BEGIN LICENSE BLOCK *****
 * Version: MPL 1.1/GPL 2.0/LGPL 2.1
 *
 * The contents of this file are subject to the Mozilla Public License Version
 * 1.1 (the "License"); you may not use this file except in compliance with
 * the License. You may obtain a copy of the License at
 * http://www.mozilla.org/MPL/
 *
 * Software distributed under the License is distributed on an "AS IS" basis,
 * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
 * for the specific language governing rights and limitations under the
 * License.
 *
 * The Original Code is part of dcm4che, an implementation of DICOM(TM) in
 * Java(TM), available at http://sourceforge.net/projects/dcm4che.
 *
 * The Initial Developer of the Original Code is
 * Agfa HealthCare.
 * Portions created by the Initial Developer are Copyright (C) 2006
 * the Initial Developer. All Rights Reserved.
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 *
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package org.dcm4chex.archive.hl7;

import java.util.Collections;
import java.util.List;

import org.dom4j.Document;
import org.dom4j.Element;
import org.regenstrief.xhl7.HL7XMLLiterate;

/**
 * @author gunter.zeilinger@tiani.com
 * @version $Revision: 5631 $ $Date: 2008-01-03 10:13:58 -0300 (Thu, 03 Jan 2008) $
 * @since Mar 29, 2006
 */
class RSP extends ACK {

    public final String queryTag;
    public final String queryResponseStatus;
    public final PID pid;

    public RSP(Document msg) {
        super(msg);
        Element qak = msg.getRootElement().element("QAK");
        if (qak == null)
                throw new IllegalArgumentException("Missing QAK Segment");
        List qakfds = qak.elements(HL7XMLLiterate.TAG_FIELD);
        this.queryTag = toString(qakfds.get(0));
        this.queryResponseStatus = toString(qakfds.get(1));
        pid = "OK".equals(queryResponseStatus) && !PID.isEmpty(msg) ? new PID(msg) : null;
    }

    public String toString() {
        return "RSP[code=" +  acknowledgmentCode 
                + ", msgID=" + messageControlID + ','
                + ", errorMsg=" + textMessage
                + ", status=" + queryResponseStatus
                + ", pid# =" + (pid != null ? pid.countPatientIDs() : 0)
                + "]";
    }
    
    public List getPatientIDs() {
        return pid != null ? pid.getPatientIDs() : Collections.EMPTY_LIST;
    }
    
}
